CITY PROJECT - 1821 & 1823 E Chestnut Ave - Plan

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ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7160.23 2860 Walnut Avenue, Signal Hill CA 90755 January 23, 2024 Tel: (562) 426 -7990 * Fax: (562) 426 -1842 Page 1 1.0 INTRODUCTION This Soils Report presents the results of ASE's geotechnical investigation for the proposed community hub building (the Building), located within the Santa Ana Zoo, at 1801 East Chestnut Avenue, in the City of Santa Ana, California (the Site). The approximate location of the Site is shown on Figure 1, Site Location Map. The purpose of this investigation was to evaluate the general subsurface soil conditions at the Site and provide geotechnical recommendations for the design and construction of the Building. This Soils Report presents the summary of the data collected, and the results of ASE's engineering evaluations/analyses, which provide the basis for the formulation of relevant geotechnical conclusions and recommendations. 1.1 Project Outline ASE understands that the following information is applicable at the time of this Soils Report preparation. 1.1.1 Building/Development Scope: Based on the provided information, ASE understands that the Building will be located along the east perimeter of the zoo, west of the overflow parking lot and north of lawn and proposed entry village. The Building will be approximately 6000 square feet in planar dimension for education, containing flex classrooms and a new holding building for ambassador animals. The other appurtenant improvements are likely to include signage, landscape, pavement, utilities and hardscape. 1.1.2 Structural Loading for Geotechnical Analyses: In the absence of structural loading information and for the purpose of foundation analysis, ASE has assumed that the Building will have a maximum concentrated column load (D+L) on the order of 40 kips when supported by isolated pad footings or have a maximum line load (D+L) not exceeding 3,000 pounds per linear foot (plf) when supported on continuous spread footings. For any new secondary structural improvements (i.e. site walls, trash enclosures, signs, etc.), ASE has assumed a maximum concentrated column load (D+L) on the order of 10 kips when supported by isolated pad footings or a maximum line load (D+L) not exceeding 1,500 pounds per linear foot (plf) when supported on continuous spread footings. Tolerable total and differential static settlements resulted from the above structural loadings on the order of one-half (1/2) inch and one-quarter (1/4) inch over a 30-foot distance, respectively, have been considered by ASE. 1.2 Scope of Investigation In accomplishing the subject investigation, ASE's staff had performed the following geotechnical tasks: